package wan.moneybook;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

import wan.moneybook.bean.Account;


public class LoginFilter implements Filter {

	@Override
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
		HttpServletRequest httpRequest = (HttpServletRequest) request;
		HttpSession session = httpRequest.getSession(true);

		if(session.getAttribute("account") == null) {
			Account bean = new Account("guest","guest");
			session.setAttribute("account",bean);

			chain.doFilter(request, response);
		} else chain.doFilter(request, response);
	}

	@Override
	public void init(FilterConfig arg0) throws ServletException {}

	@Override
	public void destroy() {}
}
